(a) Remove the forward bulkhead liner to get access to the battery.
SUBTASK 24-31-11-020-007
(8) Disconnect the connectors from the battery:
(a) Remove the sealing wire from the connector knob.
(b) Turn the knob on the battery power connector counterclockwise until the connector is free
from the battery receptacle.
(c) Disconnect the battery sensor connector from the battery receptacle.
G. Battery Connector Inspection
SUBTASK 24-31-11-210-004
(1) Examine the battery sensor connector for these conditions:
(a) Corrosion or pitting of the contacts
(b) Burn marks on the contacts.
(c) Bent or pushed back contacts
(d) Damage or corrosion to the connector body
SUBTASK 24-31-11-210-007
(2) If you found one of the above conditions, repair or replace the connector.
SUBTASK 24-31-11-210-005
(3) Do this check of the battery power connector:
(a) Remove the two (2) bolts that hold the connector together.
(b) If you found one of these conditions, replace the battery power connector (SWPM
20-62-25).
1) Corrosion and pitting of the power contacts or terminal lug mating surfaces
2) Excessive free play or broken pins on the handwheel-worm assembly
3) Burn marks on the power contacts, terminal lug contact bar mating surfaces or
terminal stud
(c) FOR SPIRAL SPRING TYPE POWER CONTACTS;
Use the battery inspection gage tool, SPL-12292 to do a check of the resiliency of the
battery connector power contactor as follows:
1) Put the 0.385 end of the tool into the power contact.
a) Make sure the fit is snug and it requires at least 1 lbf (4 N) to remove the tool.
NOTE: Attach the force gage through the hole in the tool.
(d) Use the battery inspection gage tool, SPL-12292 to do a check of the ability for the power
contact to mate with a worn or undersize pin as follows:
1) Put the 0.370 end of the tool in the power contact.
a) Make sure the fit is snug and it requires at least 0.8 lbf (3.6 N) to remove the
tool.
NOTE: Attach the force gage through the hole in the tool.
(e) Do a check of the contact bar:
1) If the contact bar is held on with a screw, make sure the screw is tight and the
contact bar is tight.
NOTE: Use the standard torque values for the screw (PAGEBLOCK 20-50-11/201).
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-31-11
Page 603
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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